> index 664a5200037..e33763e7420 100644
> --- a/usr.bin/openssl/Makefile
> +++ b/usr.bin/openssl/Makefile
> @@ -17,6 +17,7 @@ CFLAGS+= -Wuninitialized
> CFLAGS+= -Wunused
> .if ${COMPILER_VERSION:L} == "clang"
> CFLAGS+= -Werror
> +CFLAGS+= -Wno-unused-but-set-variable
This will break the build with LLVM 11 because of -Werror:
error: unknown warning option '-Wno-unused-but-set-variable'; did you mean
'-Wno-unused-const-variable'? [-Werror,-Wunknown-warning-option]
*** Error 1 in /usr/src/usr.bin/openssl (<sys.mk>:87 'apps.o')
Also, it would be nice to know what triggered this addition.